Warnings:[1] Standard Errors assume that the covariance matrix of the errors is correctly specified.[2] The condition number is large, 8.91e+03. This might indicate that there arestrong multicollinearity or other numerical problems.

Warnings:[1] Standard Errors assume that the covariance matrix of the errors is correctly specified.[2] The condition number is large, 8.13e+03. This might indicate that there arestrong multicollinearity or other numerical problems.